First off, for anyone who hasn't heard of the new American car magazine, 0-60, I would highly recommend picking up a copy of its premiere issue. It's much closer to the British magazines, like Evo than Motor Trend. There's an article on the LS3 in here that sheds new light on how it's gonna perform. First off, the team doing race testing on the LS3 is said to make 506hp with just a new cam and headers. They call it a "small scale, economical version of the LS7." Whether they know something we don't, they did say it would be in the Camaro and Impala SS. They also said future versions would include VVT.